14390650666 has 32 divisors (see below), whose sum is σ = 25150354560. Its totient is φ = 6047870400.

The previous prime is 14390650663. The next prime is 14390650667. The reversal of 14390650666 is 66605609341.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (14390650661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257220 + ... + 308128.

It is an arithmetic number, because the mean of its divisors is an integer number (785948580).

Almost surely, 2^14390650666 is an apocalyptic number.

14390650666 is a deficient number, since it is larger than the sum of its proper divisors (10759703894).

14390650666 is a wasteful number, since it uses less digits than its factorization.

14390650666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51310.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 14390650666 in words is "fourteen billion, three hundred ninety million, six hundred fifty thousand, six hundred sixty-six".